In what is probably just another day in the life of Lady Gaga, the singer flashed her nipple on Instagram soon after news broke that her former personal assistant (yes, the same one who sued her in 2011) is writing a tell-all book about Mother Monster.

According to the Hollywood Reporter, Gaga's former assistant, Jennifer O' Neill, has just inked a deal with Atrium Books to write a tell-all about the star, whom O' Neill worked for from 2009-2011. The book deal could reportedly be worth $1 million.

In December 2011, O' Neill sued Gaga, claiming that the singer owed her $393,000 in overtime pay and that Gaga requested that O' Neill perform such tasks as sleeping in the same bed with her and handing her a towel after a shower. (For her part, Gaga was furious and even called her assistant a "f----- hood rat who is suing me for money she didn't earn.")

In other Lady Gaga news, the singer recently took to Instagram to show off some of her -- ahem -- assets, snapping a selfie that shows off her sideboob (and side nipple), thanks to one very low-cut blazer. Though the photo has since been deleted, you can check out the original NSFW image here. You know what they say: Nothing really ever disappears from the Internet.